A NEW METHOD FOR THE STYRENATION OF TRIGLYCERIDE OILS FOR SURFACE-COATINGS

A new method for the styrenation of triglyceride oils-namely, sunflowe r seed oil, tobacco seed oil, poppy seed oil, and linseed oil-is descr ibed. This method is based on the incorporation of thermolabile azo gr oups to the partial glycerides by the condensation of 4,4'-azobis(4-cy anopentanoyl chloride) with the corresponding glycerides. The resultin g intermediates were styrenated using a no-catalyzed process by heatin g at 70-degrees-C. The properties of the styrenated products have been determined and compared with those obtained by classical solvent and mass methods. Moreover, the effect of addition of allyl diethyl malona te, during styrenation, as a degradative transfer agent on the propert ies of the products, has been studied.